Why does the DEM management of meta information module not save a new item (network, station, measurement configuration) when some fields are not filled in?
The DEM is preloaded with all available meta information from AirBase. For some stations, only very limited information is available. This reduces the possibilities to work with AirBase (e.g. make selections). The ETC/ACC defined a minimum set of obliged meta information (out of Decision 97/101/EC Annex II) and a set of essential and desired parameters of which we think it is at least needed to create a flexible system, which can offer enough functionality for you, as user.